I agree to the extent that some people may view vaccines this way, but I believe there are far more people who don't even research vaccines at all, assume they're completely safe, basically keep their heads in the sand, and listen to everything their doctors tell them (sheeple - no one on here of course). These types of people believe that vaccines can do no wrong and cannot phathom for a second why someone would choose not to vaccinate, especially to keep the "herd" protected. (I really hate the word "herd" anymore.) Those who can sit there and say they are completely safe should really do some research..
I try to give other people the benefit of the doubt in this area. I'm sure there are parents who don't research and just make a gut decision not to vaccinate, and I'm sure there are parents who don't research and make the popular or advised decision to vaccinate, but I try not to assume that of anyone because I don't want to resort to the sort of "You're too dumb to understand the real science or you'd do what we do!" tactic that is so commonly used against vaccine-free families.
It's definitely possible to read the same studies and books and expert opinions and form your own different conclusions and it probably happens a lot. I have to believe that most vaccinating parents did their research and just happen to disagree, which is their right. I have no problem with (civil) disagreement and the right to make different choices, as long as they extend my family and people like us the very same courtesy. Informed consent and freedom of choice have to apply equally to everyone, even if we vehemently disagree with them.